Wall for radiators, boilers, or the like



T. E MURRAY WALL FOR RADIATORS, BOILERS, OR THE LIKE Nov. 16, 1926. I 1,606,89f

Filed May 14. 1925 awowntoz Patented Nov. 16, 1926.

UNITED STATES THOMAS E. MURRAY, OF BROOKLYN, NEW YORK.

WALL I EOR RADIATORS,

In certain previous a plications I have described the making radiators, boilers, heaters and the like of very thin metal, preferably copper, because of its high conductive property. .The present invention is directed to certain constructions bywhich such walls are stiffened against lateral pressures due to steam or vacuum within the tubes or chambers thereof. The accompanying drawings to illustrate embodiments of the invention.

Fig. 1 is a horizontal section ofa stiffened hollow or tubular structure. Fig. 2 is a side elevation thereof. Fig. 3 is a side elevation of a part of one as of the stifieners. Figs. 4, 5 and 6 .are horizontal sections illustrating modifications in detail.

Fig. 7 is a side elevation of part of one of the stifieners of Fig. 5.

Figs. 8 and 9 are horizontal sections of other types of construction.

Referring to the embodiments of'the invention illustrated, the water or steam wall or vesselis composed of sheets 1 of thin sheet metal spaced apart according to the required conditions of use. These two sheets are integrally united and extend continuously around comparatively stifi or heavy walled tubes 2, communicating by openings 3 an with the space enclosed between the sheets 1. These sheets may be bowed outward as at l, or may be flat as indicated at other points. by stifieners located entirely within the sheets, so that the latter may remain imperiorate so as to provide the maximum security against leaks. According to Fig. 1 the stilieners consist of bars 5 of considerably greater width than the enclosed space and with flanges 6 mother enlargements on their-edges. And the sheets 1 arebnt outward as at 7 and around the enlargements 6 so as to embrace the latter and interlock the plates with. the stifiene'rs, preventing or limiting'outwa'rd movement of the plates under internal pressure and inward movement thereof in case of internal vacuum. The pipes 2 at the ends, surrounded by the plates 1 and held within a space between them, serve 53 a similar stifiening function. For free cir- 4 culation' in the enclosed space, the stifieners are provided with holes 8 at intervals in their length. See Fig. 3.

According to 4: each stiffener is made of two bars 9, overlapping at their inner edges and having registering holes. A 1on- They are braced at intervals Romans, OR THE LIKE.

Application flledua -14, 1925. Serial no. 30,254.

gitudinal rod 10 passes through these holes 1n the several stilfeners so as to lock them against inwardvor outward movement.

According to Fig. 5 stitleners'll are used 6 consisting of flat bars with holes 12 (Fig. I 7 punched through their marginal portions. The sheets 1 are bent outward around the. edges of these stili'ening bars and are pressed inward as at 13 to partially enter the holes 12 and thus interlock the plates with the stiffener s. Holes 8 are provlded for circulation through the centre. V

Accordin to Fig. 6, the same interlocking scheme s used, but tlie'stifi'ener is made i in two parts 14 overlapping at the centre and ,tied together by the rod 10 as in Fig. 4.

Fig. 8 shows the employment as a stiffener of an ordinary rolled I-beam 15 the flanges 16 of which are embraced and interlocked with the plates by portions 17 of the 1 latter. The stilieners shown are all ordinary commercial rolled vbars or ,shapes. They may extend far beyond the plane of the side walls 1 as in Figs. 1 to 6, where a .considerable "stiffening is required, or to a less extent, as in Fig. where there is less need for reinforcement.

Fig. 9 illl-ustrates the arrangement where a joint is to be made in the walls of the v vessel. In this case the plates 1 at each side of the vessel are welded together along the joint 18. Near the joint at each side there 11s a stiffener 19 comprising a bar with heads 20 about which portions 21 of the plate are bent and interlocked. The joint ateach g.

.side is reinforced by a second plate 22 located .on the inner face of the first plate and extending to the stiiieners 19 at opposite sides of the joint, with flan es 23 bent outwardand clamped between t e stilfeners and. the outwardly extended portions of the plates Thus the plates 22 reinforcethe joints against lateral strains and also against tensile strains.

The parts of the structure may be as sembled in various ways. For example, the bends in the plates 1 may be made initially large enough to permit the easy insertion v in their longitudinal direction of the stiffeners or the pipes 2 of Fig. 1 and the reinforcing plates 22 of Fig. 9. After which, the laterally extended parts of the plates may be pinched together into a close interlock with the stifl'eners. The invention is particularly designed to facilitate the production of vessels for the uses described of very thin sheet Ill metal, particularly copper or on rous alloys; and such thin sheets by their exibility are best adapted for the bending operations involved.

Various modifications of the embodiments illustrated may be made by those skilled in the art without departing from the invention as defined in the following claims: 7

What I claim is:

1. A vessel of the character described having walls of thin flexible sheet metal and stiffeners extending across the enclosed space and having their opposite edges engaged by said walls, the stilfeners extending laterally beyond the normal plane of the walls and the wall extending around the outside of the stitfeners and interlocked therewith.

2. A vessel of the character described having walls of thin flexible sheet metal and stifi'eners extending across the enclosed space and having their opposite edges engaged by said walls, the wall being formed of two plates welded together and the wel 'oint being reinforced by an inside plate extending across the joint and having its ends gripped between the stifl'eners and portions of the plates.

In witness whereof, I have hereunto signedmy name.

THOMAS E. MURRAY. 

